Final answer:
In construction, changes to plans and specs should be officially approved and agreed to by all involved to ensure clear communication and consent.
Step-by-step explanation:
Changes to plans and specs should be approved and agreed to by all parties involved in that phase of construction. It is essential for changes to be formally recognized to ensure everyone understands and consents to the alterations being made. This process typically involves the study of the change, its potential impacts, and formal documentation that is commonly accompanied by the signatures of the relevant authorities and parties involved.
Changes to plans and specs should be signed and dated by all parties involved in that phase of construction, as this helps to ensure accountability and provide a clear record of the changes made. The signatures indicate that the parties agree to the changes and understand their implications.